I'm toying with the idea of producing a printed circuit board for my amplifier project. It's an audio amp based on the concept of a power op-amp. Very low noise and a power output up to 56 watts depending on what voltage you supply to it. It'll drive 4-8 ohms, though the power requirements will vary depending on the intended load.
Anyway, the costs of making the board are kinda high, but the costs of making a whole bunch of boards is only a teeny bit more. I'm writing this to get a feeler to see if anyone else is interested in buying printed boards to build their own amplifier. I was thinking $20 for a set of 2 boards (one for each channel). I'll include a copy of the schematics, all write-ups, Bill of Materials, and a design manual for the amp itself. (I plan to release all docs under GPL anyway)
So, anyone up for a hobby project?